3721057129 has 4 divisors (see below), whose sum is σ = 3721288576. Its totient is φ = 3720825684.

The previous prime is 3721057127. The next prime is 3721057141. The reversal of 3721057129 is 9217501273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3721057129 - 2¹ = 3721057127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3721057127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89649 + ... + 124414.

It is an arithmetic number, because the mean of its divisors is an integer number (930322144).

Almost surely, 2^3721057129 is an apocalyptic number.

It is an amenable number.

3721057129 is a deficient number, since it is larger than the sum of its proper divisors (231447).

3721057129 is a wasteful number, since it uses less digits than its factorization.

3721057129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231446.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 3721057129 is about 61000.4682686945. The cubic root of 3721057129 is about 1549.6089376256.

It can be divided in two parts, 372 and 1057129, that added together give a palindrome (1057501).

The spelling of 3721057129 in words is "three billion, seven hundred twenty-one million, fifty-seven thousand, one hundred twenty-nine".